AW is a great 3D-Chat client, that loads Objects (RWX format) and a "map" from a server and renders a 3D environment (which has a really good graphics engine!) where oneselves can visit places or meet other people and chat with them. It is also possible to build your own house there.

This is an instant messaging application based on a client/server architecture, a client part of Bopup IM platform. Bopup Messenger requires Bopup Communication Server that is a server application for Windows PC and which must be running on a remote host. This instant messenger offers secure text messaging and file transfer functions. IM is strongly encrypted so this software application can be used for safely exchange with instant messages and documents via local networks and Internet.

Bopup Observer is a small tool that allows to receive instant messages and files over local networks and Internet. It is based on a central server software called Bopup Communication Server that holds all user accounts, message history and user groups for broadcast messaging. This application cannot send outgoging data, it is designed for one-way messaging and can be used as alerting and notification utility in various environments such as corporate networks, school LAN or healtcare/clinic tool. Delivered data is strongly ecnrypted so this software can be used for safe exchange with confidential information.

It allows to build IVR call flows to be used with Cisco Voice Portal. Using speech and dial-tones recognition by playing back pre-recorded and generated text-to-speech, one can provide self service options to a caller.

DetelFone is a simple, free internet telephone programme. You can use it to talk for free with anybody and at anytime and do many other things as well. By using it, you will become a member of the Detel Tribe.

Discord is a free communication app that is lightweight and designed for gamers with performance in mind. It has the capability for both text and voice chat, divided into individual channels and servers that users can join.

Fetion is a popular Chinese IM client supported by China Mobile. It supports chat, SMS services, PC calling, picture sharing, file transfer and other services. It is currently the 3rd most popular IM client in Mainland China.

Five9 Agent is one of three applications that make up the client side of the Five9 Virtual Contact Center. This program is not officially supported on *NIX distributions, but I have had success with using wine to get this application to run.

GCN is a new online communications service, which allows you to see when your friends are online, communicate in private conversations, talk collectively in chat rooms, send files, post to and create message boards, send and receive E-mail, create your own profile, speak in voice chats, play games, draw in white boards, browse the Internet, participate in video conferences, and much more. The best part is, GCN will always be absolutely FREE!

Sync your world in style. HTC Sync Manager is a free application for your computer that makes it easy to sync all of your media to and from your computer with your HTC phone. You can also sync all of your contacts, calendar events, bookmarks, and documents as well. Once synced, you can easily manage and organize with HTC Sync Manager on your computer. Everything is safely backed up and ready to be updated to your phone.

imo.im is a website that runs msn messenger, AIM/ICQ, Yahoo!, Skype, MySpace chat, and Google Talk, with support for audio and video. The site works on Ubuntu, but they have a downloadable client for Windows, which this page is for.

­"IP Softphone makes it easy to place and receive phone calls from your PC or laptop... It gives the user a choice of simple Graphical User Interfaces (GUIs) and integrates well with Microsoft desktop applications such as Outlook and Internet Explorer, enabling click to dial and screen pops. There are options to add Instant Messaging and Presence as well as videoconferencing for enhanced collaboration capabilities."

Miranda IM is a multi-protocol instant messaging client for Windows. Very light on system resources and extremely fast, Miranda IM requires no installation and can be made to fit on a single floppy disk or USB drive. Featuring a powerful plugin-based framework and boasting over 350 plugins, Miranda IM is one of the most flexible and customisable messaging clients on the planet.

Miranda NG open source chat/instant messaging application is a continuation of Miranda project, which supports multiple protocols and also allows you to chat with your Facebook and VK friends without using your web browser.

NetTalk is a free and open-source lightweight IRC client that has several unique features, such as command autocompletion, nickname autocompletion, mouse gestures, syntax hints, a spellchecker, connection profiles, encryption, a full-fledged DCC file transfer manager, customizable right-click menus, on-screen displaying of messages (for example while playing games), a BASIC-dialect scripting language, unlimited preconfigured commands after authenticating on a server, customizable colors and background, and a very intuitive interface that is geared towards new users but still has many powerful features as mentioned above. It has support for several languages (English, German, and several others).

Real Time is a corporate chat tool that enables employees and teams to effectively collaborate and share content. Contacts can be added from the corporate domain users. In addition to 1:1 chat, collaborative places serve as meeting points for multiple users. A presenter can share this screen with the others. All content (chats, meetings, collaboration) is stored in the Content Server and is therefore available for future reference. Real Time is one of the most used applications at OpenText, its vendor.

PalaceChat is a third-party client for The Palace 2D avatar chat protocol, extending it with more modern features such as, but not limited to, avatars up to 128 by 128 pixels, embedded videos, and full 32-bit color avatars.

PGPfone (Pretty Good Privacy Phone) is a software package that turns your desktop or notebook computer into a secure telephone. It uses speech compression and strong cryptography protocols to give you the ability to have a real-time secure telephone conversation. Secure voice calls are supported over the Internet, or through a direct modem-to-modem connection, or even over AppleTalk networks.

QQ International is Tecent's response to those who wanted an English language version of their popular QQ IM chat client. If you haven't heard of QQ it's because it's primarily used in Mainland China. If you are an English speaker who is living and working in China, QQ becomes a necessary evil if you wish to IM with your Chinese friends. In comparison to other IM clients, I find that the Chinese version of QQ is virus ridden, but the International version that I am posting here doesn't seem to be as malicious nor as aggressive when it installs to your computer.

Raptr is a chat client that will allow you to talk ingame on Msn, Aim, Steam, Xbox, Xfire, Yahoo , Gtalk, Facebook, and ICQ. Raptr is more than a chat client it will also post to your blogs and twitter what game you're currently playing, and it also has its own profle/chat system.

Roger Wilco allows gamers a chance to communicate with each other during game play - it enhances the experience of team based games. I tested the installation and found a small problem with submission of my personal data.

Silent Desktop is the desktop companion to silent circle's encrypted calling app for android and iOS. Silent Circle has not responded to when or whether they might release a Linux desktop app or a developer API (I've asked and gotten no response).

Stagecoach Island is a great 3D-Chat client, that loads Objects (RWX format) and a "map" from a server and renders a 3D environment (which has a really good graphics engine!) where oneselves can visit places or meet other people and chat with them. It is also possible to build your own house there and learn how to use bank related stuff.

Freemium Website Live Chat service. Create account, add the javascript to your site, then you can chat with website visitors either through the tawk.to site or using this application. I leave it running 24/7 so that I can respond to chats quickly.

­­­TeamSpeak is software which enables people to speak with one another over the Internet. TeamSpeak consists of both client and server software. The server acts as a host to multiple client connections, capable of handling literally thousands of simultaneous users. This results in an Internet based conferencing solution that works in a variety of applications such as team mates speaking with one another while playing their favorite online game, facilitating in­ter-office communication among co-workers, or simply for personal communication with friends and family.­

The Palace (client) is a graphical internet instant messaging tool. It allows users to communicate in a 2-dimensional room and users get to pick their own avatars (pictures) create their own or animate one.

­Time & Chaos (T&C) is a complex personal information manager (PIM) with an easy and 'user friendly' interface. It incorporates a contact address book, an appointment scheduler module, a tasks handler and memo component. T&C works both as a standalone client or as groupware in a networked environment and if flexible enough for use by a wide range of business types.

The Application is developed by one of the biggest Business 2 Business platforms for international business - Alibaba.com. The Application in its aims must provide easiest way for business to communicate with each other. Use of it is available only for registered users (free membership is available). The usage is free, but protocol is not public and application sources are not available.

Voodoo Chat is a multi-server chat system (ran by users) based in the vein of Excite's Virtual Places and Halsoft Chat. Voodoo Chat offers chat with avatars on a server of your choice. If you're unhappy with the server's on the list, set up your own server and bring in your own friends.

"When you join the VZones, you become a digital person and meet other people from around the world. You can talk, gesture, walk around and explore...play games, win prizes, buy, sell and just have fun."

WeChat is a popular instant messaging application in China. Its features include sending voice messages, offline messages and group chat. It's produced by Tencent, the company who also developed QQ, another popular instant messaging application.

WhatsApp is a well known messaging platform used mostly by mobile phone users (due to app requirement), purchased by Facebook. All data are end-to-end encrypted. Initial release was back in January 2009.

This product allows a student using the content management system "Blackboard" to communicate to other students in the same class without giving access to all the other "questionable" servers on the net.

This is a client application, written for Windows, to use the FoIP (fax over IP) server XMediusFax. Certain other companies, such as www.onesuite.com, provide services based on this server platform and distribute rebranded versions of the client software. The client in this case was distributed as osFaxSetup.exe and installs itself as OneSuite Fax or OSFX.